Netscape 4.x on Solaris also does this, and sometimes it can
cause Listserv command output to go to the wrong user (since
Listserv replies to Sender when it probably should use the
envelope sender (SMTP "MAIL FROM"):

If the server login ID doesn't match the LHS of the e-mail address,
Netscape Messenger generates a Sender line to try to authenticate
who the "real sender" is.  Unfortunately, this line is not
correctly generated, resulting in a bad Sender line.   We reported
it to Netscape over a year ago, and it will finally be fixed in
Netscape 5.0.

A workaround in Netscape 4.x is to set the mail.suppress_sender_header
variable in Netscape's preferences file (unfortunately not accessible
by the user interface).

Eva Kalman
[log in to unmask]

On Wed, 19 Jan 2000 11:37:05 +0100, Mercedes Gimenez <[log in to unmask]>
wrote:

>        Hello all.
>
>        John, THANK YOU very much. Now, Miguel is using another MTA (Kmail)
and
>listserv work perfectly. The problem is in Netsacape whith Linux. Netscape
>change the Sender and we don´t know how to modifiy it.
>
>        Thanks again. Regards,
>
>
>
>At 16:34 18/01/00 -0500, John Lyon wrote:
>>> You can set "Spam Delay" to zero minutes. However, Listserv is doing
>>> it's job by checking "suspicious" mail before processing it. I would
>>> be more interest in finding out why that person's mail looks
>>> suspicious to Listserv and try to correct that.
>>>
>>> In the headers, my guess is the difference in addresses of the Sender
>>> vs From.
>>>
>>> > Sender: [log in to unmask]
>>> > Message-ID: <[log in to unmask]>
>>> > Date: Tue, 18 Jan 2000 13:31:42 +0100
>>> > From: "Miguel A. Garcia" <[log in to unmask]>
>>
>>Mercedes,
>>My suspicions have been confirmed. With Listserv, Sender takes priority
>>over From. If this subscriber is subscribed under [log in to unmask]
>>this will keep happening as long as his mail client is inserting
>>"Sender: [log in to unmask]"  If the subscriber cannot change this, then it
>>would be best to subscribe <[log in to unmask]> and delete
>><[log in to unmask]>  Or, you can have both addresses subscribed and
>>set one to NOMAIL.
>>
>>
>>
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